[BUGFIX] Enable line-wraps in backend preview tables

Resources/Private/Templates/Backend/Latest.html

 {namespace be=TYPO3\CMS\Backend\ViewHelpers}
 
+<style type="text/css">
+	.backend-preview-table > tbody > tr > th {
+		white-space: normal;
+	}
+</style>
+
 <be:link.editRecord table="tt_content" uid="{uid}">
 	<br/>
 
-	<table class="table table-striped table-bordered">
+	<table class="table table-striped table-bordered backend-preview-table">
 		<f:render partial="PluginDataTableHeader"/>
 
 		<tbody>

Resources/Private/Templates/Backend/ListByCategory.html

 {namespace be=TYPO3\CMS\Backend\ViewHelpers}
 
+<style type="text/css">
+	.backend-preview-table > tbody > tr > th {
+		white-space: normal;
+	}
+</style>
+
 <be:link.editRecord table="tt_content" uid="{uid}">
 	<br/>
 
-	<table class="table table-striped table-bordered">
+	<table class="table table-striped table-bordered backend-preview-table">
 		<f:render partial="PluginDataTableHeader"/>
 
 		<tbody>

Resources/Private/Templates/Backend/NewsByAuthor.html

 {namespace be=TYPO3\CMS\Backend\ViewHelpers}
 {namespace core=TYPO3\CMS\Core\ViewHelpers}
 
+<style type="text/css">
+	.backend-preview-table > tbody > tr > th {
+		white-space: normal;
+	}
+</style>
+
 <be:link.editRecord table="tt_content" uid="{uid}">
 	<br/>
 
-	<table class="table table-striped table-bordered">
+	<table class="table table-striped table-bordered backend-preview-table">
 		<f:render partial="PluginDataTableHeader"/>
 
 		<tbody>

Resources/Private/Templates/Backend/Overview.html

 {namespace be=TYPO3\CMS\Backend\ViewHelpers}
 {namespace core=TYPO3\CMS\Core\ViewHelpers}
 
+<style type="text/css">
+	.backend-preview-table > tbody > tr > th {
+		white-space: normal;
+	}
+</style>
+
 <be:link.editRecord table="tt_content" uid="{uid}">
 	<br/>
 
-	<table class="table table-striped table-bordered">
+	<table class="table table-striped table-bordered backend-preview-table">
 		<f:render partial="PluginDataTableHeader"/>
 
 		<tbody>